lower optimization to test codecov

Author: jcurtis2

Dockerfile

@@ -18,8 +18,8 @@ COPY . /partmc/
 RUN mkdir /build \
     && cd /build \
     && cmake -D CMAKE_BUILD_TYPE=release \
-             -D CMAKE_C_FLAGS_RELEASE="-O2 -g -Werror -Wall -Wextra --coverage" \
-             -D CMAKE_Fortran_FLAGS_RELEASE="-O2 -g -Werror -fimplicit-none -Wall -Wextra -Wconversion -Wunderflow -Wimplicit-interface -Wno-compare-reals -Wno-unused -Wno-unused-parameter -Wno-unused-dummy-argument -fbounds-check --coverage" \
+             -D CMAKE_C_FLAGS_RELEASE="-O0 -g -Werror -Wall -Wextra --coverage" \
+             -D CMAKE_Fortran_FLAGS_RELEASE="-O0 -g -Werror -fimplicit-none -Wall -Wextra -Wconversion -Wunderflow -Wimplicit-interface -Wno-compare-reals -Wno-unused -Wno-unused-parameter -Wno-unused-dummy-argument -fbounds-check --coverage" \
              -D ENABLE_GSL:BOOL=TRUE \
              /partmc \
     && make